US235468A - Jambs speuoe - Google Patents

Description

Nof 235.24.58-

J. SPRUGE. l Spring Hinge.

Patented Dec. 14,1880.

UNITED STATES PATENT CEErcE.

JAMES SPRUCE, OF,WATERBURY, CONNECTICUT, ASSIGNOR TO THE SCOVILL MANUFACTURING COMPANY, OF SAME PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 235,468, dated December 14, 1880.

Application filed September 4, 1879.

To all whom it may concern: Beit known that I, JAMES SPRUCE, of Waterbury, in the county of New Haven and Statel ot Connecticut, have invented a new Improvement in Spring-Hinges; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in- Figure 1,a sectional face View; Fig. 2, a detached view of the sleeve.

This invention relates to an improvement in that class of spring-hinges in which a spiral spring is arranged 'around the pintle, one end bearing on one leaf and the other end on the other leaf, so that the action of the spring tends to close the door to which the hinge is applied.

To prevent wearing of the spring two tubes have been introduced around the pintle, one at one end and the other at the other end, and so that the tubes would turn with the spring, that at one end in one direction and that at the other end in the other direction. This necessitates that the length of the tubes shall correspond to and pintle of the hinge an independent tube at each end around the pintle, the tube constructed with a ange at its outer end to rest or bear against the end coilofthe spring and between that and fthecorresponding knuckle, as more fully( hereinafter described.`

A is one leaf, constructed with a knuckle, a, at one end and a at the other end. B is the other leaf, with a knuckle, b, at one end and b at the other end, with a pintle, C, extending through the knuckles at one end and to and through the knuckles at the other end, witha spiral spring, D, around the pintle, the one end, d, bearing on one leaf and the other end, 5o

d', bea-ring on the other leaf, all in the usual manner.

e is a sleeve or tube, (shown detached in Fig. 2,) its internal diameter corresponding to the diameter ot' the pintle and its external diame- 55 ter to the interior of the spring, and at one end an annular ange, f, is turned outward. One of these tubes is introduced at each end onto the pintle and into the sprin g, with its flange resting against the knuckle and between the 6o knuckle and the spring, as seen in Fig. 1.

By this construction the tube may be made short, and the lange serves to hold it in place or prevent movement in the line ci' axis, and is more cheaply made than the same length of tube can be as a part of the knuckle or attached thereto, and as an independent tube there is a saving of at least half the length of the tube over the usual independent tube.

I claim- In ahinge,the combination of the two leaves,

each jointed to the other by a pintle, leaving a space between the knuckles, a spring around the pintle, one end bearing upon one leaf and the other end upon the other leaf, with a sleeve at each end around the pintle and within the spring, the said sleeve constructed with an annular flange to rest between the spring and knuckle, substantially as described.

JAMES SPRUCE.

Witnesses M. L. SPERRY, C. P. Goss.

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